Scalar and vector self-energies of heavy baryons in nuclear medium
Yükleniyor...
Dosyalar
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The in-medium sum rules are employed to calculate the shifts in the mass and residue as well as the scalar and vector self-energies of the heavy Lambda(Q), Sigma(Q) and Xi(Q) baryons, with Q being b or c quark. The maximum shift in mass due to nuclear matter belongs to the Sigma(c) baryon and it is found to be Delta m Sigma(c) = -936 MeV. In the case of residue, it is obtained that the residue of Sigma(b) baryon is maximally affected by the nuclear medium with the shift Delta lambda Sigma(b) = -0.014 GeV3. The scalar and vector self-energies are found to be Sigma(S)(Lambda b)= 653 MeV, Sigma(S)(Lambda b) = -614 MeV, Sigma(S)(Xi b) = -17 MeV, Sigma(S)(Lambda c)., = 272 MeV, Sigma(S)(Sigma c) = -936 MeV, Sigma(S)(Xi c) = -5 MeV and Sigma(nu)(Lambda c) = 436 +/- 148 MeV, Sigma(nu)(Sigma c) = 382 +/- 129 MeV, Sigma(nu)(Xi c) =15 +/- 5 MeV, Sigma(nu)(Lambda c) =151 +/- 45 MeV, Sigma(nu)(Sigma c)= 486 +/- 144 MeV and Sigma(nu)(Xi c) = 1.391 +/- 0.529 MeV. (C) 2017 The Author(s). Pcublished by Elsevier B.V.
Açıklama
Anahtar Kelimeler
Nuclear Matter, Heavy Hadrons, Mass, Residue, Scalar and Vector Self-Energies
Kaynak
Nuclear Physics A
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
960
